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Thread: OBD-II Switching

  1. #1
    Newbie
    Join Date
    Jun 2005
    Posts
    24

    OBD-II Switching

    OK here is my dilema

    i have 2 units that i would like to have plugged in all the time in, now i know they will both argue over who has priority etc.

    so my guess was to have a rocker switch on the power line from the OBD so i could allocate which one would have access to the ecu....

    i currently have the following items in the car
    HKS Camp2 Unit
    OBDII reader

    any thoughts or suggestions......

  2. #2
    Newbie
    Join Date
    Jun 2005
    Posts
    24
    any ideas people ?

  3. #3
    Constant Bitrate dna59's Avatar
    Join Date
    Jul 2010
    Location
    Belize City, Belize
    Posts
    145
    Go to the junkyard and get a OBDII plug and wire it up along w/ the one that's already in there? Then put a switch on the power feed for it. In theory sounds like it would work...lol

  4. #4
    Newbie
    Join Date
    Jun 2005
    Posts
    24
    That's my thoughts well not going to bother with extra plug just hard wire a unit before the plug lol

  5. #5
    Low Bitrate
    Join Date
    Jul 2005
    Location
    Michigan
    Posts
    70
    I've had multiple tools connected many many times with success. Shouldn't be an issue provided the hardware you are installing doesn't suck.

    Depending on what protocol your car uses, you may just be able to have them both connected at the same time. Both modules may request the same info at the same time, but the car will just think its coming from one module just really fast. If it can handle serving the information then it will; if it can't, it won't.

    Good luck.
    Hack your car's CAN BUS at www.canbushack.com

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